Collect and Process Motor Data

Step 1 of 7 in Generate Current Controller Calibration Tables for Torque and Speed-Based Motor Controllers

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Collect this nonlinear motor data from dynamometer testing or finite element analysis (FEA):

• d- and q-axis current

• d- and q-axis flux linkage

• Electromagnetic motor torque

For a script that preprocesses raw motor data and calculates voltages from flux, current, and speed, see Preprocess Permanent Magnet Synchronous Motor (PMSM) Data and Autogenerate Current Controller Calibration Tables. The script outputs a data set to use in the Model-Based Calibration Toolbox™ (MBC) app to generate calibrations.

Use the data preprocessing script to calculate these variables:

• Current magnitude, I_s, in A

• Voltage magnitude, V_s, in V

• Total flux, Ψ_total, in Wb

• Allowed flux, Ψ_max, in Wb

Run the script using different DC voltages to generate data files for calibrating controller tables at each DC voltage level.

For each DC voltage level, create a preprocessed data file containing these data:

• Total flux, Ψ_total, in Wb

• Allowed flux, Ψ_max, in Wb

• d-axis current, I_d, in A

• q-axis current, I_q, in A

• Current magnitude, I_s, in A

• Voltage magnitude, V_s, in V

• Motor torque, T_e, in N·m

• Motor speed, n, in rpm

For this example:

• Pole pairs, P, is 4.

• Inverter bus voltage, V_dc, is 350.

The data file matlab\toolbox\mbc\mbctraining\PMSM_MBCData.xlsx contains the motor data.